http://reply.papertrans.cn/1/88/8774/8774-31.png
Submitted on: 18 January 2000.
Revised on: 13 May 2000.
Accepted on: 02 July 2000.
___________________EPMA Journal---SPRINGER INT PUBL AG
Submitted on: 13 June 2016.
Revised on: 04 October 2016.
Accepted on: 29 October 2016.
___________________EPMA Journal---SPRINGER INT PUBL AG
http://reply.papertrans.cn/1/88/8774/8774-34.png
Submitted on: 12 November 2016.
Revised on: 29 December 2016.
Accepted on: 10 January 2017.
___________________EPMA Journal---SPRINGER INT PUBL AG
Submitted on: 14 June 2016.
Revised on: 20 July 2016.
Accepted on: 07 August 2016.
___________________EPMA Journal---SPRINGER INT PUBL AG